Vulnerability-Lookup

CNVD-2021-34682

Vulnerability from cnvd - Published: 2021-05-14

Title

Linux kernel输入验证错误漏洞（CNVD-2021-34682）

Description

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 5.8.9版本存在输入验证错误漏洞。该漏洞源于当设备发送分段的帧并且使用WEP，CCMP或GCMP数据机密协议时，攻击者可以利用此漏洞来注入数据包或泄露选定的片段。

Severity

中

Patch Name

Linux kernel输入验证错误漏洞（CNVD-2021-34682）的补丁

Patch Description

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 5.8.9版本存在输入验证错误漏洞。该漏洞源于当设备发送分段的帧并且使用WEP，CCMP或GCMP数据机密协议时，攻击者可以利用此漏洞来注入数据包或泄露选定的片段。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-24586

Impacted products

Name
Linux Linux kernel 5.8.9

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-24586"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel 5.8.9\u7248\u672c\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u8bbe\u5907\u53d1\u9001\u5206\u6bb5\u7684\u5e27\u5e76\u4e14\u4f7f\u7528WEP\uff0cCCMP\u6216GCMP\u6570\u636e\u673a\u5bc6\u534f\u8bae\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u6b64\u6f0f\u6d1e\u6765\u6ce8\u5165\u6570\u636e\u5305\u6216\u6cc4\u9732\u9009\u5b9a\u7684\u7247\u6bb5\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-34682",
  "openTime": "2021-05-14",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 5.8.9\u7248\u672c\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u8bbe\u5907\u53d1\u9001\u5206\u6bb5\u7684\u5e27\u5e76\u4e14\u4f7f\u7528WEP\uff0cCCMP\u6216GCMP\u6570\u636e\u673a\u5bc6\u534f\u8bae\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u6b64\u6f0f\u6d1e\u6765\u6ce8\u5165\u6570\u636e\u5305\u6216\u6cc4\u9732\u9009\u5b9a\u7684\u7247\u6bb5\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Linux kernel\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-34682\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel 5.8.9"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-24586",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-14",
  "title": "Linux kernel\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-34682\uff09"
}

CVE-2020-24586 (GCVE-0-2020-24586)

Vulnerability from cvelistv5 – Published: 2021-05-11 00:00 – Updated: 2024-08-04 15:19

Summary

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

9 references

URL	Tags
https://www.intel.com/content/www/us/en/security-…
https://tools.cisco.com/security/center/content/C…	vendor-advisory
https://www.fragattacks.com
https://github.com/vanhoefm/fragattacks/blob/mast…
http://www.openwall.com/lists/oss-security/2021/0…	mailing-list
https://lists.debian.org/debian-lts-announce/2021…	mailing-list
https://lists.debian.org/debian-lts-announce/2021…	mailing-list
https://www.arista.com/en/support/advisories-noti…
https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:19:08.804Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html"
          },
          {
            "name": "20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.fragattacks.com"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md"
          },
          {
            "name": "[oss-security] 20210511 various 802.11 security issues - fragattacks.com",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/05/11/12"
          },
          {
            "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
          },
          {
            "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63"
          },
          {
            "name": "[debian-lts-announce] 20230401 [SECURITY] [DLA 3380-1] firmware-nonfree LTS new upstream version (security updates and newer firmware for Linux 5.10)",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn\u0027t require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-04-01T00:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html"
        },
        {
          "name": "20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu"
        },
        {
          "url": "https://www.fragattacks.com"
        },
        {
          "url": "https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md"
        },
        {
          "name": "[oss-security] 20210511 various 802.11 security issues - fragattacks.com",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2021/05/11/12"
        },
        {
          "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
        },
        {
          "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
        },
        {
          "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63"
        },
        {
          "name": "[debian-lts-announce] 20230401 [SECURITY] [DLA 3380-1] firmware-nonfree LTS new upstream version (security updates and newer firmware for Linux 5.10)",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-24586",
    "datePublished": "2021-05-11T00:00:00.000Z",
    "dateReserved": "2020-08-21T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:19:08.804Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2021-34682

CVE-2020-24586 (GCVE-0-2020-24586)

Tags

Sightings

Nomenclature

Related by attack behaviour